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MSR Hyperflow Microfilter Water Filter
  • $99.95
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Hyperflow Microfilter Water Purifier Filter

  • Weight: 7.8 oz. (221g)
  • Pumps 2.75 liters per min.
  • Hollow Fiber Filter Technology
  • Quick-Connect™ bottle adapter
  • Ergonomic grip
  • Field Maintainable
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    MSR has developed a new Hollow Fiber filter technology for their HyperFlow™ filtration system. The ultra-light HyperFlow™ Microfilter utilizes this technology making it the smallest, lightest, and highest-flow filter available. The HyperFlow™ offers a high flow rate and is significantly lighter and more compact than any other backcountry filtration system. The Quick-Connect™ bottle adapter is compatible with all containers that have a 63mm threaded opening (like a Nalgene®). The over-molded end caps offer an ergonomic grip for comfortable pumping. The HyperFlow™ Microfilter is super fast, pumping more than 2.75 liters per minute. You can also maintain the filter in the field because no tools are required for complete disassembly. The HyperFlow™ is compact and lightweight without sacrificing performance or durability, making this filter an ideal choice for backcountry campers.

    Please note: this product can only be shipped to U.S. addresses. If you attempt to order this item and have it shipped outside the US, we will contact you and cancel the order.

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    I used this filter over six months of almost weekly backpacking but only in flowing water. Filtered 16 liters of snow melt for our climbing party of 12 in less than 30 minutes and hassle-free. The bottle-mount adapter fit most of the 1 liter bottles carried by our team. Fast and easy to use.

    Edward K. Neumann

    Bend, OR


    Note from the manufacturer: We have identified a flow performance issue with some of the hollow fiber filter cartridges contained in MSR HyperFlow microfilters. The performance issue DOES NOT affect the product's ability to filter safe drinking water but can be frustrating as the flow rate of the filter may not perform to product specifications. The issue has been rectified and all filter cartridges currently in production for the MSR HyperFlow microfilter perform to flow specifications. It is our goal to provide you with the most innovative and reliable outdoor gear available when you need it most. You can be confident in the efficacy of the hollow fiber filter technology, but if you are experiencing a less-than-expected flow rate on the MSR HyperFlow microfilter right out of the box or after back flushing, we want to know. Please contact our Customer Service Department at Cascade Designs, Inc. by calling 1.800.531.9531, and we will send you a valid replacement filter element at no charge for any filter cartridge manufactured prior to November 11, 2008. Please have your filter cartridge element handy as we will ask for the serial number for our records and manufacture date verification.

    Cascade Designs, Inc.

    Seattle, WA


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